HENVO / INDUSTRIAL FLOW SYSTEMS

Rotary Lobe Pump

What is a Rotary Lobe Pump?

A rotary lobe pump is a positive displacement pump in which rotating lobes carry liquid through the casing toward the outlet. The HENVO collection includes 3RP rotor and lobe configurations, a chocolate pump and sanitary-labelled transfer or filling listings. Procurement starts with the liquid’s viscosity, temperature and required flow, followed by speed, sealing and cleaning requirements. These listings provide model-specific starting data; a sanitary label does not by itself establish a certification, approved cleaning procedure or suitability for every food-contact process.

Applications

Viscous-liquid transfer

The Liquid Lobe Pump and 3RP rotor listings provide viscosity or flow information for comparison. State the liquid’s consistency at the actual transfer temperature.

Chocolate and syrup-related duties

A chocolate product is listed, and the 3RP Three Phase product identifies honey, syrup, sauce, jam and butter. Review temperature, ingredients and cleaning requirements for the exact application.

Filling-system feed

The Sanitary Lobe Filling Pumps listing supports enquiries about feeding a filling process. Provide the required flow profile and downstream restrictions; the listing does not establish dosing accuracy.

How to Select the Right Pump?

Selection depends on the following operating conditions. Keep the units and pressure reference explicit when sending your requirement.

  1. Describe viscosity and consistency

    Use the actual viscosity units and measurement temperature. Include any change with temperature, settling or process shear.

  2. Define the transfer or filling duty

    Specify normal flow and any intermittent filling demand. Distinguish continuous transfer from a controlled dosing requirement.

  3. Check process and cleaning temperatures

    Provide both liquid and cleaning conditions where applicable. Confirm the selected model’s wetted materials and seals against each condition.

  4. Review the seal arrangement

    The Horizontal Sanitary Lobe Pump lists mechanical-seal and packing-seal options. Confirm which arrangement is being quoted and what support or maintenance it needs.

  5. Confirm speed and pressure units

    Use the selected product’s speed data and a pressure value with a confirmed unit. The Small Lobe Rotor Pump lists discharge pressure as ≤10 without a unit; request clarification before using it in a design.

  6. Assess alternative pump families

    Compare Screw Pump or Gear Pump listings for other viscous-liquid transfer needs. Let the medium, sealing and required process controls determine the suitable construction.

Technical Considerations

Liquid and temperature profile

Prepare product composition, viscosity with units, density, normal temperature and any cleaning temperature. Identify ingredients or particles requiring a specific review.

Duty and pressure reference

Send flow, inlet and discharge conditions, pipework and the transfer or filling schedule. Ask for any missing pressure unit to be confirmed in the quotation.

Seals and process requirements

Provide the desired sealing arrangement, cleaning method and applicable documentation requirements. Include power supply, speed control and connection details.

Procurement Questions

How do I shortlist a rotary lobe pump for a viscous liquid?

Start with viscosity at operating temperature and the required flow. Then review inlet conditions, pressure, speed and the seal arrangement for the individual model.

Does a sanitary product name establish food-contact approval?

The collection contains sanitary-labelled and food-application listings, but a name alone does not establish approval for your process. Specify the required materials, cleaning procedure and documentation before ordering.

What does the listed discharge pressure ≤10 mean?

The 3RP Small Lobe Rotor Pump record gives ≤10 without a pressure unit. HENVO must confirm the unit and its meaning for the proposed configuration before that value is used for selection.

What seal information is needed before a quotation?

Provide the liquid, temperature, pressure and cleaning conditions, together with any sealing requirement. Where mechanical seal or packing seal is listed, confirm the quoted arrangement and its operating provisions.

When should I compare a different displacement pump?

Compare Screw Pump or Gear Pump options if your viscous-liquid duty, installation or sealing needs suggest another mechanism. Review the individual product data rather than treating the categories as equivalent.

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